Search Results - "Leventhal, Audie G."

GABA and Its Agonists Improved Visual Cortical Function in Senescent Monkeys by Leventhal, Audie G., Wang, Yongchang, Pu, Mingliang, Zhou, Yifeng, Ma, Yuanye

“…Human cerebral cortical function degrades during old age. Much of this change may result from a degradation of intracortical inhibition during senescence. We…”
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Functional degradation of visual cortical cells in old cats by Hua, Tianmiao, Li, Xiangrui, He, Lihua, Zhou, Yifeng, Wang, Yongchang, Leventhal, Audie G.

“…Visual function declines with age. Using extracellular single-unit in vivo recordings, we compared the function of primary visual cortical (area 17) cells in…”
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Spatial and temporal sensitivity degradation of primary visual cortical cells in senescent rhesus monkeys by Zhang, Jie, Wang, Xiusong, Wang, Yongchang, Fu, Yu, Liang, Zhen, Ma, Yuanye, Leventhal, Audie G.

“…Human visual function declines with age. Much of this decline is mediated by changes in the central visual pathways. In this study we compared the spatial and…”
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Degradation of stimulus selectivity of visual cortical cells in senescent rhesus monkeys by Leventhal, Audie G, Schmolesky, Matthew T, Wang, Youngchang, Pu, Mingliang

“…Human visual function declines with age. Much of this decline is probably mediated by changes in the central visual pathways. We compared the stimulus…”
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Signal Timing Across the Macaque Visual System by Schmolesky, Matthew T, Wang, Youngchang, Hanes, Doug P, Thompson, Kirk G, Leutgeb, Stefan, Schall, Jeffrey D, Leventhal, Audie G

“…Matthew T. Schmolesky 1 , Youngchang Wang 1 , Doug P. Hanes 2 , Kirk G. Thompson 2 , Stefan Leutgeb 1 , Jeffrey D. Schall 2 , and Audie G. Leventhal 1 1…”
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Aging affects the direction selectivity of MT cells in rhesus monkeys by Liang, Zhen, Yang, Yun, Li, Guangxing, Zhang, Jie, Wang, Yongchang, Zhou, Yifeng, Leventhal, Audie G

“…Abstract The ability to accurately perceive the direction and speed of moving objects declines during normal aging. This is likely due to functional…”
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Aging Affects the Neural Representation of Speed in Macaque Area MT by Yang, Yun, Zhang, Jie, Liang, Zhen, Li, Guangxing, Wang, Yongchang, Ma, Yuanye, Zhou, Yifeng, Leventhal, Audie G.

“…Human perception of speed declines with age. Much of the decline is probably mediated by changes in the middle temporal (MT) area, an extrastriate area whose…”
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Degradation of Signal Timing in Cortical Areas V1 and V2 of Senescent Monkeys by Wang, Yongchang, Zhou, Yifeng, Ma, Yuanye, Leventhal, Audie G.

“…Senescence in monkeys results in a degradation of the functional properties of cortical cells as well as prolonged hyperactivity. We have now compared the…”
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The Nasotemporal Division in Primate Retina: The Neural Bases of Macular Sparing and Splitting by Leventhal, Audie G., Ault, Steven J., Vitek, Dagmar J.

“…In primates, each hemisphere contains a representation of the contralateral visual hemifield; unilateral damage to the visual pathways results in loss of…”
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Neural correlates of boundary perception by Leventhal, A G, Wang, Y, Schmolesky, M T, Zhou, Y

“…The responses of neurons in areas V1 (17) and V2 (18) of anesthetized and paralyzed rhesus monkeys and cats were recorded while presenting a set of…”
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Retinal Ganglion Cell Classes in the Old World Monkey: Morphology and Central Projections by Leventhal, Audie G., Rodieck, R. W., Dreher, B.

“…Labeled ganglion cells were studied in whole-mount retinas of Old World monkeys after electrophoretic injections of horseradish peroxidase into physiologically…”
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Structural basis of orientation sensitivity of cat retinal ganglion cells by Leventhal, A G, Schall, J D

“…We investigated the structural basis of the physiological orientation sensitivity of retinal ganglion cells (Levick and Thibos, '82). The dendritic fields of…”
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Relationship between preferred orientation and receptive field position of neurons in cat striate cortex by Leventhal, A G

“…It has been known for two decades that neurons in mammalian visual cortex respond selectively to stimuli falling on the retina at a particular angular…”
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Morphology, central projections, and dendritic field orientation of retinal ganglion cells in the ferret by Vitek, D J, Schall, J D, Leventhal, A G

“…Retinal ganglion cells were studied in pigmented ferrets that received small electrophoretic injections of horseradish peroxidase (HRP) into the dorsal lateral…”
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Abnormal visual pathways in normally pigmented cats that are heterozygous for albinism by Leventhal, A.G, Vitek, D.J, Creel, D.J

“…The various forms of albinism affect about one in 10,000 births in the United States. An additional 1 to 2 percent of the population has normal pigmentation…”
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Concomitant sensitivity to orientation, direction, and color of cells in layers 2, 3, and 4 of monkey striate cortex by Leventhal, AG, Thompson, KG, Liu, D, Zhou, Y, Ault, SJ

“…The receptive field properties of cells in layers 2, 3, and 4 of area 17 (V1) of the monkey were studied quantitatively using colored and broad-band gratings,…”
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Relationship between preferred orientation and receptive field position of neurons in extrastriate cortex (area 19) in the cat by Leventhal, A G, Schall, J D, Wallace, W

“…Orientation sensitivity is a characteristic of most retinal ganglion cells (Levick and Thibos, '82), most relay cells in the dorsal lateral geniculate nucleus…”
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Abnormal retinotopic organization of the dorsal lateral geniculate nucleus of the tyrosinase-negative albino cat by Schmolesky, Matthew T., Wang, Yongchang, Creel, Donnell J., Leventhal, Audie G.

“…Visual defects associated with hypopigmentation have been studied extensively in Siamese and albino cats. Previous research on tyrosinase‐negative albino cats…”
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Visual deprivation does not affect the orientation and direction sensitivity of relay cells in the lateral geniculate nucleus of the cat by Zhou, Y, Leventhal, AG, Thompson, KG

“…Visual deprivation in early life profoundly affects the characteristic sensitivity of visual cortical cells to stimulus orientation and direction. Recently,…”
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Abnormal ipsilateral visual field representation in areas 17 and 18 of hypopigmented cats by Ault, S J, Leventhal, A G, Vitek, D J, Creel, D J

“…We compared the central projections of retinal ganglion cells in temporal retina and the cortical representation of visual fields in areas 17 and 18 in cats…”
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